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Update SharePoint list's Author / Editor field in App-Only context

Use Cases You’re migrating list items from a tenant to another using back-office app (console app or Azure SaaS resource) and want to keep existing fields, including author / editor ones You’re developing an API / Web App that will be used by employees which data is saved to a SharePoint List without being in user context (because you want to make some background checks before saving) When working with SharePoint in App-Only context, every update made on list items are done with the user “SharePoint App”.

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